28/5/18 Sciencce

Aim: To turn a copper piece to gold

Equipment

• Copper Coin
• Bunsen Burner
• Tripod
• Heat Mat
• Gauze Mat 
• Beaker 
• Tongs
• Zinc Metal
• 2.0 M Zinc Nitrate Solution

Method

1. Wash Copper
2. Add fresh strips of zinc metal to the solution. Heat to boil over a Bunsen Burner
3. Drop washed copper coin into the solution. Make sure it is touching some of the zinc metal or the reaction won't work
4. Leave coin in the solution for 5-10 minutes (check back and observe changes).
5. Remove coin with the tongs, and hold under running water to wash 
6. Use the tongs to hold the washed coin in the Bunsen flame. Observe the changes.